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package mpb_test
import (
crand "crypto/rand"
"io"
"math/rand"
"time"
"github.com/vbauerster/mpb/v8"
"github.com/vbauerster/mpb/v8/decor"
)
func Example() {
// initialize progress container, with custom width
p := mpb.New(mpb.WithWidth(64))
total := 100
name := "Single Bar:"
// create a single bar, which will inherit container's width
bar := p.New(int64(total),
// BarFillerBuilder with custom style
mpb.BarStyle().Lbound("╢").Filler("▌").Tip("▌").Padding("░").Rbound("╟"),
mpb.PrependDecorators(
// display our name with one space on the right
decor.Name(name, decor.WC{C: decor.DindentRight | decor.DextraSpace}),
// replace ETA decorator with "done" message, OnComplete event
decor.OnComplete(decor.AverageETA(decor.ET_STYLE_GO), "done"),
),
mpb.AppendDecorators(decor.Percentage()),
)
// simulating some work
max := 100 * time.Millisecond
for i := 0; i < total; i++ {
time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
bar.Increment()
}
// wait for our bar to complete and flush
p.Wait()
}
func ExampleBar_Completed() {
p := mpb.New()
bar := p.AddBar(100)
max := 100 * time.Millisecond
for !bar.Completed() {
time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
bar.Increment()
}
p.Wait()
}
func ExampleBar_ProxyReader() {
// import crand "crypto/rand"
var total int64 = 1024 * 1024 * 500
reader := io.LimitReader(crand.Reader, total)
p := mpb.New()
bar := p.AddBar(total,
mpb.AppendDecorators(
decor.CountersKibiByte("% .2f / % .2f"),
),
)
// create proxy reader
proxyReader := bar.ProxyReader(reader)
defer proxyReader.Close()
// and copy from reader, ignoring errors
_, _ = io.Copy(io.Discard, proxyReader)
p.Wait()
}
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